When you create/refresh a Sandbox, all (but the refreshing) users email addresses get crippled with a nice "example.com". Using security codes via email, this basically breaks the possibility for other users to login at the fresh sandbox, unless their email addresses get changed...
We have written some Apex fixing the email-addresses back for some or all users, but the extra loop in confirming the email-address change often is ignored or forgotten by the affected users, so that if these users should login usually some time has passed and the email-change-confirmation is expired after 72h. So eventually most of them still can't login and again they are wasting time of others. This really sucks.
For sure this email-mangling is done by Salesforce with a purpose in mind and for sure this is designed as an very powerful security feature to prevent normal users form getting spammed by Sandbox-Emails. Only that it bothers us a lot and has killed already so much of our time, that I would happily turn it OFF once and for all.
Is that possible? If so, how?
Also the email deliverability is usually reduced on fresh Sandboxes. Also here we would love to have the full-thing without the need of extra clicks. At Setup > Email-Administration > Deliverability is there a way to get the Access Level on "All email" instead something less by default after a refresh?